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annotate src/audio/dsp/SDL_dspaudio.c @ 3826:5b483ce86357 SDL-ryan-multiple-audio-device

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Minor fixes in dsp driver.
author Ryan C. Gordon <icculus@icculus.org>
date Sat, 07 Oct 2006 07:53:26 +0000
parents 1f156fd874fa
children 66fb40445587
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2006 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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22 Modified in Oct 2004 by Hannu Savolainen
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23 hannu@opensound.com
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24 */
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25 #include "SDL_config.h"
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26
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27 /* Allow access to a raw mixing buffer */
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28
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29 #include <stdio.h> /* For perror() */
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30 #include <string.h> /* For strerror() */
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31 #include <errno.h>
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32 #include <unistd.h>
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33 #include <fcntl.h>
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34 #include <signal.h>
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35 #include <sys/time.h>
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36 #include <sys/ioctl.h>
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37 #include <sys/stat.h>
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38
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39 #if SDL_AUDIO_DRIVER_OSS_SOUNDCARD_H
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40 /* This is installed on some systems */
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41 #include <soundcard.h>
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42 #else
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43 /* This is recommended by OSS */
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44 #include <sys/soundcard.h>
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45 #endif
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46
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47 #include "SDL_timer.h"
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48 #include "SDL_audio.h"
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49 #include "../SDL_audiomem.h"
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50 #include "../SDL_audio_c.h"
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51 #include "../SDL_audiodev_c.h"
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52 #include "SDL_dspaudio.h"
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53
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54 /* The tag name used by DSP audio */
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55 #define DSP_DRIVER_NAME "dsp"
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56
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57 /* Open the audio device for playback, and don't block if busy */
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58 #define OPEN_FLAGS_OUTPUT (O_WRONLY|O_NONBLOCK)
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59 #define OPEN_FLAGS_INPUT (O_RDONLY|O_NONBLOCK)
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60
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61 static char **outputDevices = NULL;
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62 static int outputDeviceCount = 0;
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63 static char **inputDevices = NULL;
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64 static int inputDeviceCount = 0;
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65
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66 static inline void
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67 free_device_list(char ***devs, int *count)
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68 {
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69 SDL_FreeUnixAudioDevices(devs, count);
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70 }
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71
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72 static inline void
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73 build_device_list(int iscapture, char ***devs, int *count)
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74 {
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75 const int flags = ((iscapture) ? OPEN_FLAGS_INPUT : OPEN_FLAGS_OUTPUT);
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76 free_device_list(devs, count);
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77 SDL_EnumUnixAudioDevices(flags, 0, NULL, devs, count);
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78 }
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79
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80 static inline void
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81 build_device_lists(void)
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82 {
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83 build_device_list(0, &outputDevices, &outputDeviceCount);
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84 build_device_list(1, &inputDevices, &inputDeviceCount);
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85 }
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86
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87
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88 static inline void
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89 free_device_lists(void)
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90 {
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91 free_device_list(&outputDevices, &outputDeviceCount);
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92 free_device_list(&inputDevices, &inputDeviceCount);
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93 }
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94
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95
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96 static int
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97 DSP_Available(void)
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98 {
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99 int available = 0;
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100 build_device_lists();
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101 available = ((outputDeviceCount > 0) || (inputDeviceCount > 0));
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102 free_device_lists();
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103 return available;
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104 }
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105
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106
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107 static void
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108 DSP_Deinitialize(void)
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109 {
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110 free_device_lists();
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111 }
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112
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113
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114 static int
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115 DSP_DetectDevices(int iscapture)
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116 {
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117 if (iscapture) {
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118 build_device_list(1, &inputDevices, &inputDeviceCount);
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119 return inputDeviceCount;
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120 } else {
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121 build_device_list(0, &outputDevices, &outputDeviceCount);
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122 return outputDeviceCount;
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123 }
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124
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125 return 0; /* shouldn't ever hit this. */
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126 }
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127
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128 static const char *
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129 DSP_GetDeviceName(int index, int iscapture)
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130 {
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131 if ((iscapture) && (index < inputDeviceCount)) {
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132 return inputDevices[index];
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133 } else if ((!iscapture) && (index < outputDeviceCount)) {
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134 return outputDevices[index];
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135 }
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136
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137 SDL_SetError("No such device");
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diff changeset
138 return NULL;
0
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parents:
diff changeset
139 }
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parents:
diff changeset
140
74212992fb08 Initial revision
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parents:
diff changeset
141
3817
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diff changeset
142 static void
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diff changeset
143 DSP_CloseDevice(_THIS)
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diff changeset
144 {
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diff changeset
145 if (this->hidden != NULL) {
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diff changeset
146 if (this->hidden->mixbuf != NULL) {
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diff changeset
147 SDL_FreeAudioMem(this->hidden->mixbuf);
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diff changeset
148 this->hidden->mixbuf = NULL;
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diff changeset
149 }
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diff changeset
150 if (this->hidden->audio_fd >= 0) {
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diff changeset
151 close(this->hidden->audio_fd);
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diff changeset
152 this->hidden->audio_fd = -1;
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parents: 3816
diff changeset
153 }
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diff changeset
154 SDL_free(this->hidden);
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parents: 3816
diff changeset
155 this->hidden = NULL;
103bbe13f5eb Patched to compile.
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parents: 3816
diff changeset
156 }
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Ryan C. Gordon <icculus@icculus.org>
parents: 3816
diff changeset
157 }
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Ryan C. Gordon <icculus@icculus.org>
parents: 3816
diff changeset
158
103bbe13f5eb Patched to compile.
Ryan C. Gordon <icculus@icculus.org>
parents: 3816
diff changeset
159
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diff changeset
160 static int
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diff changeset
161 DSP_OpenDevice(_THIS, const char *devname, int iscapture)
0
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parents:
diff changeset
162 {
3810
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diff changeset
163 const int flags = ((iscapture) ? OPEN_FLAGS_INPUT : OPEN_FLAGS_OUTPUT);
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diff changeset
164 int format;
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diff changeset
165 int value;
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parents: 1612
diff changeset
166 int frag_spec;
1982
3b4ce57c6215 First shot at new audio data types (int32 and float32).
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parents: 1895
diff changeset
167 SDL_AudioFormat test_format;
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
168
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diff changeset
169 /* We don't care what the devname is...we'll try to open anything. */
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diff changeset
170 /* ...but default to first name in the list... */
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parents: 3798
diff changeset
171 if (devname == NULL) {
2c5387c0a642 Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
172 if ( ((iscapture) && (inputDeviceCount == 0)) ||
2c5387c0a642 Multiple audio device code is now working for dsp and dma targets.
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parents: 3798
diff changeset
173 ((!iscapture) && (outputDeviceCount == 0)) ) {
2c5387c0a642 Multiple audio device code is now working for dsp and dma targets.
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diff changeset
174 SDL_SetError("No such audio device");
2c5387c0a642 Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
175 return 0;
2c5387c0a642 Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
176 }
2c5387c0a642 Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
177 devname = ((iscapture) ? inputDevices[0] : outputDevices[0]);
2c5387c0a642 Multiple audio device code is now working for dsp and dma targets.
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parents: 3798
diff changeset
178 }
2c5387c0a642 Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
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diff changeset
179
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589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
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parents: 1982
diff changeset
180 /* Initialize all variables that we clean on shutdown */
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
181 this->hidden = (struct SDL_PrivateAudioData *)
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
182 SDL_malloc((sizeof *this->hidden));
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
183 if (this->hidden == NULL) {
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
184 SDL_OutOfMemory();
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Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
185 return 0;
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
186 }
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
187 SDL_memset(this->hidden, 0, (sizeof *this->hidden));
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
188
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diff changeset
189 /* Open the audio device */
3810
2c5387c0a642 Multiple audio device code is now working for dsp and dma targets.
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parents: 3798
diff changeset
190 this->hidden->audio_fd = open(devname, flags, 0);
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
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parents: 1982
diff changeset
191 if (this->hidden->audio_fd < 0) {
3826
5b483ce86357 Minor fixes in dsp driver.
Ryan C. Gordon <icculus@icculus.org>
parents: 3820
diff changeset
192 DSP_CloseDevice(this);
3810
2c5387c0a642 Multiple audio device code is now working for dsp and dma targets.
Ryan C. Gordon <icculus@icculus.org>
parents: 3798
diff changeset
193 SDL_SetError("Couldn't open %s: %s", devname, strerror(errno));
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
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parents: 1982
diff changeset
194 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
195 }
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
196 this->hidden->mixbuf = NULL;
968
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Sam Lantinga <slouken@libsdl.org>
parents: 960
diff changeset
197
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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diff changeset
198 /* Make the file descriptor use blocking writes with fcntl() */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1612
diff changeset
199 {
3826
5b483ce86357 Minor fixes in dsp driver.
Ryan C. Gordon <icculus@icculus.org>
parents: 3820
diff changeset
200 long ctlflags;
5b483ce86357 Minor fixes in dsp driver.
Ryan C. Gordon <icculus@icculus.org>
parents: 3820
diff changeset
201 ctlflags = fcntl(this->hidden->audio_fd, F_GETFL);
5b483ce86357 Minor fixes in dsp driver.
Ryan C. Gordon <icculus@icculus.org>
parents: 3820
diff changeset
202 ctlflags &= ~O_NONBLOCK;
5b483ce86357 Minor fixes in dsp driver.
Ryan C. Gordon <icculus@icculus.org>
parents: 3820
diff changeset
203 if (fcntl(this->hidden->audio_fd, F_SETFL, ctlflags) < 0) {
5b483ce86357 Minor fixes in dsp driver.
Ryan C. Gordon <icculus@icculus.org>
parents: 3820
diff changeset
204 DSP_CloseDevice(this);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
205 SDL_SetError("Couldn't set audio blocking mode");
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
206 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
207 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
208 }
968
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Sam Lantinga <slouken@libsdl.org>
parents: 960
diff changeset
209
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
210 /* Get a list of supported hardware formats */
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
211 if (ioctl(this->hidden->audio_fd, SNDCTL_DSP_GETFMTS, &value) < 0) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
212 perror("SNDCTL_DSP_GETFMTS");
3826
5b483ce86357 Minor fixes in dsp driver.
Ryan C. Gordon <icculus@icculus.org>
parents: 3820
diff changeset
213 DSP_CloseDevice(this);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
214 SDL_SetError("Couldn't get audio format list");
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
215 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
216 }
968
4675910b0b7b Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents: 960
diff changeset
217
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
218 /* Try for a closest match on audio format */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
219 format = 0;
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
220 for (test_format = SDL_FirstAudioFormat(this->spec.format);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
221 !format && test_format;) {
968
4675910b0b7b Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents: 960
diff changeset
222 #ifdef DEBUG_AUDIO
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
223 fprintf(stderr, "Trying format 0x%4.4x\n", test_format);
968
4675910b0b7b Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents: 960
diff changeset
224 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
225 switch (test_format) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
226 case AUDIO_U8:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
227 if (value & AFMT_U8) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
228 format = AFMT_U8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
229 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
230 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
231 case AUDIO_S16LSB:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
232 if (value & AFMT_S16_LE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
233 format = AFMT_S16_LE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
234 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
235 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
236 case AUDIO_S16MSB:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
237 if (value & AFMT_S16_BE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
238 format = AFMT_S16_BE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
239 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
240 break;
968
4675910b0b7b Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents: 960
diff changeset
241 #if 0
4675910b0b7b Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents: 960
diff changeset
242 /*
4675910b0b7b Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents: 960
diff changeset
243 * These formats are not used by any real life systems so they are not
4675910b0b7b Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents: 960
diff changeset
244 * needed here.
4675910b0b7b Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents: 960
diff changeset
245 */
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
246 case AUDIO_S8:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
247 if (value & AFMT_S8) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
248 format = AFMT_S8;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
249 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
250 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
251 case AUDIO_U16LSB:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
252 if (value & AFMT_U16_LE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
253 format = AFMT_U16_LE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
254 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
255 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
256 case AUDIO_U16MSB:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
257 if (value & AFMT_U16_BE) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
258 format = AFMT_U16_BE;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
259 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
260 break;
968
4675910b0b7b Date: Mon, 11 Oct 2004 15:17:27 +0300 (EEST)
Sam Lantinga <slouken@libsdl.org>
parents: 960
diff changeset
261 #endif
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
262 default:
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
263 format = 0;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
264 break;
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
265 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
266 if (!format) {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
267 test_format = SDL_NextAudioFormat();
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
268 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
269 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
270 if (format == 0) {
3826
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Ryan C. Gordon <icculus@icculus.org>
parents: 3820
diff changeset
271 DSP_CloseDevice(this);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1612
diff changeset
272 SDL_SetError("Couldn't find any hardware audio formats");
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
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parents: 1982
diff changeset
273 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
274 }
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
275 this->spec.format = test_format;
968
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parents: 960
diff changeset
276
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parents: 1612
diff changeset
277 /* Set the audio format */
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
278 value = format;
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
279 if ( (ioctl(this->hidden->audio_fd, SNDCTL_DSP_SETFMT, &value) < 0) ||
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
280 (value != format) ) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1612
diff changeset
281 perror("SNDCTL_DSP_SETFMT");
3826
5b483ce86357 Minor fixes in dsp driver.
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parents: 3820
diff changeset
282 DSP_CloseDevice(this);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
283 SDL_SetError("Couldn't set audio format");
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
284 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
285 }
968
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parents: 960
diff changeset
286
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1612
diff changeset
287 /* Set the number of channels of output */
3795
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Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
288 value = this->spec.channels;
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parents: 1982
diff changeset
289 if (ioctl(this->hidden->audio_fd, SNDCTL_DSP_CHANNELS, &value) < 0) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1612
diff changeset
290 perror("SNDCTL_DSP_CHANNELS");
3826
5b483ce86357 Minor fixes in dsp driver.
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parents: 3820
diff changeset
291 DSP_CloseDevice(this);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
292 SDL_SetError("Cannot set the number of channels");
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
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parents: 1982
diff changeset
293 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1612
diff changeset
294 }
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
295 this->spec.channels = value;
968
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parents: 960
diff changeset
296
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
297 /* Set the DSP frequency */
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
298 value = this->spec.freq;
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
299 if (ioctl(this->hidden->audio_fd, SNDCTL_DSP_SPEED, &value) < 0) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
300 perror("SNDCTL_DSP_SPEED");
3826
5b483ce86357 Minor fixes in dsp driver.
Ryan C. Gordon <icculus@icculus.org>
parents: 3820
diff changeset
301 DSP_CloseDevice(this);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
302 SDL_SetError("Couldn't set audio frequency");
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
303 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
304 }
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
305 this->spec.freq = value;
0
74212992fb08 Initial revision
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parents:
diff changeset
306
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
307 /* Calculate the final parameters for this audio specification */
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
308 SDL_CalculateAudioSpec(&this->spec);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
309
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
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parents: 1612
diff changeset
310 /* Determine the power of two of the fragment size */
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
311 for (frag_spec = 0; (0x01U << frag_spec) < this->spec.size; ++frag_spec);
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
312 if ((0x01U << frag_spec) != this->spec.size) {
3826
5b483ce86357 Minor fixes in dsp driver.
Ryan C. Gordon <icculus@icculus.org>
parents: 3820
diff changeset
313 DSP_CloseDevice(this);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
314 SDL_SetError("Fragment size must be a power of two");
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
315 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
316 }
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
317 frag_spec |= 0x00020000; /* two fragments, for low latency */
0
74212992fb08 Initial revision
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parents:
diff changeset
318
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
319 /* Set the audio buffering parameters */
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
320 #ifdef DEBUG_AUDIO
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
321 fprintf(stderr, "Requesting %d fragments of size %d\n",
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
322 (frag_spec >> 16), 1 << (frag_spec & 0xFFFF));
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
323 #endif
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
324 if (ioctl(this->hidden->audio_fd, SNDCTL_DSP_SETFRAGMENT, &frag_spec) < 0) {
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
325 perror("SNDCTL_DSP_SETFRAGMENT");
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
326 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
327 #ifdef DEBUG_AUDIO
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
328 {
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
329 audio_buf_info info;
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
330 ioctl(this->hidden->audio_fd, SNDCTL_DSP_GETOSPACE, &info);
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
331 fprintf(stderr, "fragments = %d\n", info.fragments);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
332 fprintf(stderr, "fragstotal = %d\n", info.fragstotal);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
333 fprintf(stderr, "fragsize = %d\n", info.fragsize);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
334 fprintf(stderr, "bytes = %d\n", info.bytes);
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
335 }
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
336 #endif
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
337
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
338 /* Allocate mixing buffer */
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
339 this->hidden->mixlen = this->spec.size;
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
340 this->hidden->mixbuf = (Uint8 *) SDL_AllocAudioMem(this->hidden->mixlen);
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
341 if (this->hidden->mixbuf == NULL) {
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
342 DSP_CloseDevice(this);
3826
5b483ce86357 Minor fixes in dsp driver.
Ryan C. Gordon <icculus@icculus.org>
parents: 3820
diff changeset
343 SDL_OutOfMemory();
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
344 return 0;
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
345 }
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
346 SDL_memset(this->hidden->mixbuf, this->spec.silence, this->spec.size);
0
74212992fb08 Initial revision
Sam Lantinga <slouken@lokigames.com>
parents:
diff changeset
347
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
348 /* We're ready to rock and roll. :-) */
3795
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
349 return 1;
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
350 }
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
351
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
352
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
353 static void
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
354 DSP_PlayDevice(_THIS)
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
355 {
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
356 const Uint8 *mixbuf = this->hidden->mixbuf;
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
357 const int mixlen = this->hidden->mixlen;
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
358 if (write(this->hidden->audio_fd, mixbuf, mixlen) == -1) {
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
359 perror("Audio write");
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
360 this->enabled = 0;
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
361 }
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
362 #ifdef DEBUG_AUDIO
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
363 fprintf(stderr, "Wrote %d bytes of audio data\n", mixlen);
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
364 #endif
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
365 }
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
366
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
367 static Uint8 *
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
368 DSP_GetDeviceBuf(_THIS)
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
369 {
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
370 return (this->hidden->mixbuf);
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
371 }
589bc3d060cd More 1.3 audio work...moved dsp and dma drivers over to new model. Untested!
Ryan C. Gordon <icculus@icculus.org>
parents: 1982
diff changeset
372
3816
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
373 static int
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
374 DSP_Init(SDL_AudioDriverImpl *impl)
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
375 {
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
376 /* Set the function pointers */
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
377 impl->DetectDevices = DSP_DetectDevices;
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
378 impl->GetDeviceName = DSP_GetDeviceName;
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
379 impl->OpenDevice = DSP_OpenDevice;
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
380 impl->PlayDevice = DSP_PlayDevice;
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
381 impl->GetDeviceBuf = DSP_GetDeviceBuf;
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
382 impl->CloseDevice = DSP_CloseDevice;
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
383 impl->Deinitialize = DSP_Deinitialize;
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
384
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
385 build_device_lists();
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
386 return 1;
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
387 }
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
388
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
389
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
390 AudioBootStrap DSP_bootstrap = {
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
391 DSP_DRIVER_NAME, "OSS /dev/dsp standard audio",
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
392 DSP_Available, DSP_Init, 0
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
393 };
9d070c1a45fa Moved AudioBootstrap section in converted drivers to bottom of source, so I
Ryan C. Gordon <icculus@icculus.org>
parents: 3810
diff changeset
394
1895
c121d94672cb SDL 1.2 is moving to a branch, and SDL 1.3 is becoming the head.
Sam Lantinga <slouken@libsdl.org>
parents: 1612
diff changeset
395 /* vi: set ts=4 sw=4 expandtab: */